./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/trex02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/trex02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79d989fa07a5ca9fba756b11f85a2a447254705c ..................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:38:28,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:28,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:28,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:28,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:28,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:28,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:28,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:28,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:28,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:28,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:28,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:28,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:28,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:28,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:28,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:28,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:28,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:28,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:28,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:28,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:28,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:28,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:28,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:28,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:28,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:28,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:28,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:28,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:28,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:28,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:28,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:28,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:28,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:28,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:28,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:28,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:28,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:28,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:28,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:28,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:28,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:38:28,491 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:28,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:28,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:28,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:28,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:28,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:28,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:28,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:28,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:28,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:28,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:28,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:28,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:28,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:28,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:28,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:28,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:28,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:28,499 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:28,499 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:28,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:28,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:28,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:28,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:28,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:28,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:28,501 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:28,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:28,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:28,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d989fa07a5ca9fba756b11f85a2a447254705c [2020-11-28 04:38:28,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:28,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:28,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:28,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:28,762 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:28,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/../../sv-benchmarks/c/loops/trex02-2.c [2020-11-28 04:38:28,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/data/d30ed38a7/7f657dbb41ba40f2956b3c65a775f138/FLAG794768ce4 [2020-11-28 04:38:29,256 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:29,257 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/sv-benchmarks/c/loops/trex02-2.c [2020-11-28 04:38:29,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/data/d30ed38a7/7f657dbb41ba40f2956b3c65a775f138/FLAG794768ce4 [2020-11-28 04:38:29,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/data/d30ed38a7/7f657dbb41ba40f2956b3c65a775f138 [2020-11-28 04:38:29,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:29,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:29,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:29,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:29,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:29,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3a7f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29, skipping insertion in model container [2020-11-28 04:38:29,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:29,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:29,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:29,883 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:29,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:29,916 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:29,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29 WrapperNode [2020-11-28 04:38:29,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:29,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:29,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:29,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:29,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:29,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:29,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:29,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:29,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:29,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:29,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:29,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:29,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-11-28 04:38:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-11-28 04:38:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:38:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:30,357 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:30,357 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:38:30,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:30 BoogieIcfgContainer [2020-11-28 04:38:30,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:30,360 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:30,360 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:30,378 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:30,391 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:30,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-11-28 04:38:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-11-28 04:38:30,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:38:30,443 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:30,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:30,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:30,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:30,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:30,722 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-28 04:38:30,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:30 ImpRootNode [2020-11-28 04:38:30,743 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:30,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:30,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:30,744 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:30,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:30" (3/4) ... [2020-11-28 04:38:30,746 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:38:30,786 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1176e761-691a-41a0-84e7-3b73dbb195bf/bin/ukojak/witness.graphml [2020-11-28 04:38:30,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:30,789 INFO L168 Benchmark]: Toolchain (without parser) took 1109.46 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 44.5 MB in the beginning and 71.0 MB in the end (delta: -26.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:30,790 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory was 50.6 MB in the beginning and 50.5 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:30,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.17 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 44.4 MB in the beginning and 74.6 MB in the end (delta: -30.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:30,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 96.5 MB. Free memory was 74.6 MB in the beginning and 73.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:30,793 INFO L168 Benchmark]: Boogie Preprocessor took 20.12 ms. Allocated memory is still 96.5 MB. Free memory was 73.2 MB in the beginning and 72.3 MB in the end (delta: 931.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:30,794 INFO L168 Benchmark]: RCFGBuilder took 376.77 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 58.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:30,795 INFO L168 Benchmark]: CodeCheck took 382.84 ms. Allocated memory is still 96.5 MB. Free memory was 58.2 MB in the beginning and 72.7 MB in the end (delta: -14.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:30,796 INFO L168 Benchmark]: Witness Printer took 42.73 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:30,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int x; [L22] x=__VERIFIER_nondet_int() [L23] COND FALSE !(x > 0) [L6] COND TRUE !(cond) VAL [x=-1] [L3] __assert_fail("0", "trex02-2.c", 3, "reach_error") VAL [x=-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory was 50.6 MB in the beginning and 50.5 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.17 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 44.4 MB in the beginning and 74.6 MB in the end (delta: -30.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 96.5 MB. Free memory was 74.6 MB in the beginning and 73.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.12 ms. Allocated memory is still 96.5 MB. Free memory was 73.2 MB in the beginning and 72.3 MB in the end (delta: 931.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.77 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 58.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 382.84 ms. Allocated memory is still 96.5 MB. Free memory was 58.2 MB in the beginning and 72.7 MB in the end (delta: -14.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.73 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...